Google Fi Coverage Map

Google Fi runs over T-Mobile's network. Additional coverage may sometimes be available through T-Mobile's roaming partners, but its unclear exactly what roaming access Google Fi subscribers have access to. Roaming coverage is not shown in the map below.

Google Fi previously offered a unique (non-roaming) technology for switching between the networks offered by T-Mobile, Sprint, and US Cellular. Google Fi no longer uses that novel technology for network switching.

Map Usage

• Check Google Fi coverage at a specific location by entering it in the search bar
• For the most detailed view of Google Fi coverage, zoom in
• Use the tech selector to switch between 4G and 5G coverage

Data Sourcing

Cell coverage data for Google Fi comes primarily from the May 2026 release of the FCC's Broadband Data Collection program (representing networks as of December 2025), supplemented with real-world measurements from large crowdsourcing projects.